Locking-latch



(Mo'deL) V J. B. HUTSON.

LOCKING LATCH.

No. 269,421. Patented De0.19, 1882.

- WITNESSES N. PETERS, PhcloLiXhographn Washington. D. c.

UNITED STATES PATENT .FFICE.

LOCKING-LATCH.

SPECIFICATION forming part of Letters Patent No. 269,421, datedDeeember'19, 1882.

To all whom it may concern:

Be it known that I, JOSHUA B. HU'rsoN, of Richmond, in the countyofHenrico and State of Virginia, have invented a new and Improved Lock, ofwhich thefollowing is a full,

clear, and exact description.

' The object of my invention is to provide a new and improved lock ofvery simple construction which can be used for various purposes-forinstance, as a burglar-proof look, as a night-latch, as a key or knoblook, a furniture-lock, trunk-lock, &c.

The invention consists in the combination, with the sliding bolt of alock, of a sliding. frame adapted to lock the knob-nut and the keynnt toprevent them from being turned, thereby preventing the bolt from beingwithdrawn by turning'the key or knob. By means of the said frame thebolt can also be locked in the position withdrawn into the lock-casing,so that it can be used as a night-latch.

The invention further consists in the construction and combination ofparts, as more fully described and set forth hereinafter.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure lis a longitudinal elevation of my improved lock, showing thecovering-plate removed, and showing the lock adjusted to be used as akey or knob-lock. Fig. 2 is a like elevation of the same, showing boththe keynut and the knob-nut locked so that neither can be turned. Fig. 3is a like elevation, showing the bolt withdrawn into the lock and heldin this position. Fig. 4 is a longitudinal elevation of the latch forlocking the sliding frame in the desired position. Fig. 5 is across-section of the key-nut, showing the key inserted.

The bolt A terminates in two long shanks, B B, which are adapted toslide in the lockcasing O, and against the inner end of each of whichshanks spiral springs 1) rest, which press the bolt outward. At the rearends 'of the shanks B B lugs a a are provided, against one of which acam-finger, E, of the key-nut F rests. The knob-nut G is provided withtwo cam-fingers, H H, which rest against projections or lugs J J of theshanks B. The knobnut G is also provided with apertures d d Applicationfiled September 23,1882. (ModeL) toward the front and rear of the lock,respectively, and the key-nut F is provided with a recess, 0, toward therear of the lock.

Between the shanks B a frame, K, slides longitudinally, which isprovided at its rear end with a socket, K, adapted to receive the end ofa key-rod, L, for moving the said frame K. At its rear end the saidframe is provided with a pin, g, projecting toward the front end of thelock, and at its front end it is provided with a pin, it, projectingtoward the rear end of the lock, and at the middle it is provided with across-arm, M, provided with a pin, 1, projecting toward the front of thelock.

ture, m, about forty-five degrees from the aperture d, for a purposethat will be described hereinafter.

The bolt A can also be moved backward by a rod, N, projecting from thebolt and passing through a slot, 0, in the lock-casing.

casing, on which plate Q a strip, R, is pivoted, which is provided witha series of recesses, s. 'The two shanks B of the bolt are united by across-piece, T, a short distance from the rear end of the bolt,

The aperture in the lock-casing in which the key-nut F is held issurrounded by a ward, to, which projects from the inner surface of thelook-casing, and is provided with fournotches, o, in its inner edges,the said notches being separated from each other a distance of ninetydegrees or a quadrant. The key-nut F contains a transverse guard, W,which projects from the sides of the key-nut, and is adapted to be movedin the direction of the longitudinal axis of the key-nut in slots inthesides of the key-nut. The spring V contained in the nut presses theguard W toward the outer end of the key-nut, which outer end is providedwith a slot, Y, adapted to receive the end of a key, X. It the key-nutis placed in the lock, the spring V presses the guard -W on the edge ofthe ward to, and if the keyqltlll is turned the guard W will snap in oneof the notches Q7 and will lock the key-nut in place; or if the keyX isinserted the guard W is By means of the above-described key-nut the lockcan be held in different positions, accord- The knob-nut G is providedwith an a per- The key-rod L passes through a slot, P, in i a plate, Q,secured on the door or on the lockpushed back and the key-nut can beturned.

- moved by means ofthe key-rod L, which passes and key nuts from beingturned, and thus prev right as on the left side of the door without ingto the notches v of the ward to in which the guard W of the key-nut isheld.

The operation is as follows If the frame K is in the position shown inFig. 1, the bolt A can be withdrawn by means of the rod N, by means ofthe knob-nut Gr, or by means of the key-nut F, which latter willpreferably be so arranged that it can only be used with burglar-proofkeys. If the lock is to be so adjusted that the bolt can be withdrawn bymeans of the rod N only, the frame Kis moved in the direction of thearrow a-that is, toward the outer end of the lock-until the pin g passesinto the aperture 0 of the key-nut F, and the pin 1 on the transversepiece M of the sliding frame K passes into the aperture d of theknob-nut G, thus preventing the said knob venting the bolt from beingwithdrawn by means of the knob or key. The frame K is through the slot Pof the plate Q, and is held in the desired position by means of theswinging strip It, wlnch is swung above the slot P, so that the stem ofthe key-rod L must pass into one of the notches s, and will thus belocked in position. If the lock is to be adjusted so that the knob-nutcannot be used, the frame K is moved in the reverse direction of thearrow a, until the pin It passes into the aperture 01 of the knob-nutGr, thereby preventing the said knobnnt from being turned. Then thesliding frame K will not interfere with withdrawing the bolt by means ofthe key-rod L or of the key-nut F. In this case the frame K is alsolooked in position by means of the swinging strip R, the stem of thekey-rod L passing into another notch, s. It the bolt is to be locked inthe position withdrawn into the lock-casing, the knob-nut G is turned towithdraw the bolt, as shown in Fig. 3, and then the frame K is movedforward so that the pin l passes into the aperture m of the knob-nut Gr,thus preventing the same from turning, and thereby holding the boltwithdrawn into the casing. In this case also the frame K is locked inposition by means of the swinging notched strip It. If the bolt is to belooked in position projecting from the casing so that it cannot beopened by either the knobor the rod N, the key-nut F is turned so thatits cam-finger E projects toward the front of the lock-casing, thekey-nut F and the cam-finger E thereon being locked in position by theguard W, which is pressed into one of the notches v of the ward to bythe spring V, and thus locked therein. If an attemptis then made towithdraw the bolt into the lock-casing, the cross-piece T will strikeagainst the end of the cam-linger E and will prevent the bolt A frombeing withdrawn into the look.

No key-hole is required through the door, as the end of the key-nut F ismade flush with the surface of the door.

The lock can be used equally as well on the any change whatever beingmade. The look is very compact, light, and strong, very little materialis used in its manufacture, and it consists of but very few parts. It islong and narrow, and the door is not weakened to any great extent byintroducing the look into the same. The-bolt is always free to workexcept when held back as a night-latch or when purposely made fast bymeans of the key-nut, as described above. The danger of breakage byslamming the door is entirely avoided. It is a self-locking spring-lock,and if, when the boltis withdrawn, it springs into the lock, the springsimmediately push it out again, unless it is secured by -means of theknob-nut or keynut, as described above.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- I A look made substantially as herein shownand described, with a sliding frame for locking the knob-nut and key-nutto prevent them from turning, as and for the purpose set forth.

2. The combination, with a sliding lock-bolt, of a sliding frame forlocking the knob-nut and the key-nut to'prevent them fromturning, and ofdevices for locking the said sliding frame in the desired position,substantially as herein shown and described, and for the purpose setforth.

3. In a lock, the combination, with the bolt, of a sliding frameprovided with projecting pins, and of a key-nut and a knob-nut, bothprovided with apertures for receiving the pins on the sliding frame,substantially as herein shown and described, and for the purpose oflocking the said nuts to prevent them from turning, as set forth.

4. In a lock, the combination, with the bolt A, terminating in theshanks B, of the sliding frame K, between the shanks B, the pins g, l,and h on the frame K, the key-nut F, provided with an aperture, 0, andthe knob-nut Gr, provided with apertures d,d,andm, substantially asherein shown and described, and for the purpose of holding the boltwithdrawn into the 1ock-casing, as set forth.

5. In a lock, the combination, with the bolt A, terminating in theshanks B, of the key-nut F, provided with the cam-finger E, the ward to,provided with the notches c, the guard W in the key-nut, and the springV, which presses the guard toward the outer end of the keynut,substantially as herein shown and described, and for the purpose setforth.

6. In a lock, the combination, with the bolt A, of the sliding frame K,provided with pins for locking the knob-nut and the key-nut to preventthem from turning, the key-rod L, projecting from the frame K, the plateQ, provided with the slot P, and the swinging strip It, provided withthe notchess, substantially as herein shown and described, and for thepurpose set forth.

JOSHUA B. HUTSON.

Witnesses:

JULIUS Sraaus, A. L. STRAUs.

